What's New

This section summarizes the new features and functionality of Oracle TimesTen In-Memory Database Release 11.2.1 that are documented in this guide, providing links into the guide for more information.

New features for Release 11.2.1

TimesTen Release 11.2.1 includes the following new features covered in this guide.

Features for Release 11.2.1.6.0

User-specified parallel replication

For applications that have very predictable transactional dependencies and do not require the commit order on the replica data store to be the same as that on the originating data store, TimesTen supports parallel replication. This feature allows replication of multiple user-specified tracks of transactions in parallel.

TimesTen supports private and public synonyms (aliases) for database objects such as tables, views, sequences, and PL/SQL objects. See "Working with synonyms".

Features for Release 11.2.1.1.0

Quick Start demos

This release includes an optional Quick Start feature with introductory information and some new or reworked demo applications. Note that the demos have mostly the same names as in earlier releases, but in a different location.

Perhaps the most significant overall change to previous functionality in this release is access control. TimesTen has new features to control database access with object-level resolution for database objects such as tables, views, materialized views, and sequences. This also affects access to certain TimesTen built-in procedures, utilities, and connection attributes.

TimesTen now supports either of two modes for binding duplicate parameters in a SQL statement. Use the DuplicateBindMode general connection attribute to choose between Oracle mode and traditional TimesTen mode.

Automatic client failover, used in High Availability scenarios when failure of a TimesTen node results in failover (transfer) to an alternate node, automatically reconnects applications to the new node. TimesTen provides features that allow applications to be alerted when this happens, so they can take any appropriate action.

You can configure TimesTen to write a warning to the support log and throw an SNMP trap when the execution of a SQL statement exceeds a specified time duration, in seconds. This feature was added in a 7.0.x maintenance release but not documented in this manual. Note that this feature is similar to but differs from the previously existing timeout value for SQL statements.

If you are using an active standby pair replication scheme, you now have the option of using replicated bookmarks. For a replicated bookmark, operations on the bookmark are replicated to the standby database as appropriate. This allows more efficient recovery of your bookmark positions in the event of failover.